Publication: In vitro susceptibility of Thai seronegative donor CD8+ T lymphocytes to human immunodeficiency virus-1 (HIV-1) infection
Issued Date
2004-03-01
Resource Type
ISSN
0125877X
Other identifier(s)
2-s2.0-4444285529
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Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Asian Pacific Journal of Allergy and Immunology. Vol.22, No.1 (2004), 39-48
Suggested Citation
Ronnarit Haponsaph, Janice M. Darden, Somsak Chantakulkij, Nongluck Sannoi, Mark S. de Souza, Arthur E. Brown, Deborah L. Birx, Victoria R. Polonis, Kovit Pattanapanyasat In vitro susceptibility of Thai seronegative donor CD8+ T lymphocytes to human immunodeficiency virus-1 (HIV-1) infection. Asian Pacific Journal of Allergy and Immunology. Vol.22, No.1 (2004), 39-48. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/21400
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Title
In vitro susceptibility of Thai seronegative donor CD8+ T lymphocytes to human immunodeficiency virus-1 (HIV-1) infection
Abstract
To determine whether CD8+ T lymphocytes from Thai donor cells are susceptible to HIV-1 infection, undepleted peripheral blood mono-nuclear cells (PBMC) and CD8-enriched PBMC were infected with HIV-1 Thai subtype B and CRF01Æ (E) primary isolates. Virus kinetics in HIV-1 infection of CD4+ and CD8+ T lymphocytes peaked at day 7 or 10 post infection (pi); the TCID50 used for cell infection was proportional to the level of p24 production in the cultures. We also found that the level of p24 antigen in the supernatants of infected undepleted PBMC was significantly higher than that of infected CD8-enriched PBMC. Interestingly, both single positive T lymphocytes (CD4+ and CD8+ T lymphocytes) as well as double positive CD4+/CD8+ T lymphocytes were infected with HIV-1. The double positive T lymphocytes in PBMC were found only in the presence of both CD4+ and CD8+ T lymphocytes. The majority of p24+/CD4-/CD8- T lymphocytes were HIV-1 infected CD4 down-modulated PBMC. This report provides direct evidence that single positive CD8+ T lymphocytes and double positive CD4+/D8+ T lymphocytes from Thai donors can be infected with HIV-1 subtypes B and E in vitro.